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CVE-2022-30122

26
FAUCET Score

CVE-2022-30122 is a denial-of-service vulnerability affecting Rack versions prior to 2.0.9.1, 2.1.4.1, and 2.2.3.1, specifically within its multipart parsing component. This vulnerability has a CVSS score of 7.5 (High), indicating it can be exploited remotely with low attack complexity, leading to a complete loss of availability. While there is no evidence of active exploitation (KEV: No) and no public exploit code (Metasploit, Nuclei, ExploitDB: None), it has garnered some community discussion and media coverage, suggesting awareness within the security community.

Impacted Technologies

VendorProductVersion(s)CPE
>= 1.2, < 2.0.9.1CPE matchmatch criteria
cpe:2.3:a:rack_project:rack:*:*:*:*:*:*:*:*
>= 2.1.0, < 2.1.4.1CPE matchmatch criteria
cpe:2.3:a:rack_project:rack:*:*:*:*:*:*:*:*
>= 2.2.0, < 2.2.3.1CPE matchmatch criteria
cpe:2.3:a:rack_project:rack:*:*:*:*:*:*:*:*
11.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.06%
Probability of exploitation in next 30 days
EPSS Percentile
79.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0206 is in the 64th percentile among its peer group of 51,553 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (6)

redhatpatch availablevia redhat_api
Product: Red Hat Gluster Storage 3.5 for RHEL 7Fixed in: rubygem-rack-0:2.2.4-1.el7rhgs
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Satellite 6.11 for RHEL 7Fixed in: tfm-rubygem-rack-0:2.2.3.1-1.el7sat
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Satellite 6.11 for RHEL 8Fixed in: rubygem-rack-0:2.2.3.1-1.el8sat
View patch
rubygemspatch availablevia ghsa
Product: rackFixed in: 2.0.9.1
rubygemspatch availablevia ghsa
Product: rackFixed in: 2.1.4.1
rubygemspatch availablevia ghsa
Product: rackFixed in: 2.2.3.1

Vendor Advisories (2)

rubygemsGHSA-hxqx-xwvh-44m2high

Denial of Service Vulnerability in Rack Multipart Parsing

May 27, 2022
redhatCVE-2022-30122Moderate

rubygem-rack: crafted multipart POST request may cause a DoS

May 27, 2022

References

discuss.rubyonrails.org / t/cve-2022-30122-denial-of-service-vulnerability-in-rack-multipart-parsing/80729
Third Party Advisory
security.gentoo.org / glsa/202310-18
Third Party Advisory
security.netapp.com / advisory/ntap-20231208-0012
Third Party Advisory
debian.org / security/2023/dsa-5530
Third Party Advisory